Cherry orienting and feeding mechanism for a turret type pitter



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CHERRY ORIENTING AND FEEDING MECHANISM FOR A TURRET TYPE PITTEIR Original Filed Feb. 27, 1951 15 Sheets-Sheet 1 &|& O 4'?) fl-\22 eo 92 5 woe, 91 -|O9 5 90 H! a .25 F $5 H 82 o o as "14 as, yaw o o L 277 lgo 2.75 V59 27 2m -8 78 O 0 les 09 I68 I63 O \0: 2.82.

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CHERRY ORIENTING AND FEEDING MECHANISM FOR A TURRET TYPE PITTER Original Filed Feb. 27, 1951 13 Sheets-Sheet 2 WALTER I! KELLY Aug. 21, 1956 w. w. KELLY 2,759,509

CHERRY ORIENTING AND FEEDING MECHANISM FOR A TURRET TYPE PITTER Original Filed Feb. 27, 1951 IF'IE ZEI 13 Sheets-Sheet 3 EBEBEZ Zinventor WALTER W. KELLY Gttorheg KELLY G AND FEEDING MECHANISM FOR A TURRET TYPE PITTER Original Filed Feb. 27, 1951 Aug; 21, 1956 w. w.

CHERRY ORIENTIN l3 Sheets-Sheet 4 v. u n W R m m W Gttomeg Aug. 21, 1956 v w. w. KELLY 2,759,509 v CHERRY ORIENTING AND FEEDING MECHANISM FOR A TURRET TYPE PITTER Original Filed Feb. 27, 1951 I 15 Sheets-Sheet 5 "I! my IIIIIIIII- 'IIIII 3nnentor WALTER I. KELLY (Ittorneg Aug. 21. 1956 w. w. KELLY CHERRY ORIENTING AND FEEDING MECHANISM FOR A TURRET TYPE PITTER Original Filed Feb. 27, 1951 15 Shee ts-Sheet 6 52! a o a 0 B 35 I O SIS; a (gala a 522 I a 5.0 m4 J. 1

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CHERRY ORIENTING AND FEEDING MECHANISM FOR A TURRET TYPE PITTER Original Filed Feb. 27. 1951 13 Sheets-Sheet '7 Zhwentor WALTER W. KELLY 21, 1956 w. w. KELLY 2,759,509

CHERRY ORIENTING AND FEEDING MECHANISM FOR A TURRET TYPE PITTER Original Filed Feb. 27, 1951 13 SheetsSheet 8 mo. 0 O m m mam 0.2 m m 3 MQN .MQN o2 M 5 a O u Q6 A 5m. vm w gm mvm in no I x N a J\ mmN 1 av n v 0 o W w 00M qmN m mvw O a O Ill 0g //Qv vm m 0 mm 3m mm. r mm. 2; 5m ovN m 5 0 @m g u 2; 2 n3 m mmN 0% 0 E m New M .0: O v mm mmm E n O 5N O 1 mow MON :2 O m. \\PP ONW v o mmw 5N 3N vmN all 0 mm 3mm 9.. NE 8 Q. m. N \l. 000 .v 0 om mow a mom mNL 1. 1956 w. w. KELLY CHERRY ORIENTING AND FEEDING MECHANISM FOR A TURRET TYPE PITTER Original Filed Feb. 27, 1951 15 Sheets-Sheet 9 m Y u m5 "R w n m m U Cittomeg 21, 1956 w. w. KELLY 2,759,509

HERRY IENTIN A n E NG MEG C OR G N FE; DI HANISM F GR A TURRET TYPE PITTER Original Filed Feb. 27, 1951 15 S eeee s-Sheet l0 w. w. KELLY 2,759,509 CHERRY ORIENTING AND FEEDING MECHANISM FOR A TURRET TYPE PITTEIR Original Filed Feb. 27, 1951 15 Sheets-Sheet ll WALTER M KELLY attorney W. W. KELLY CHERRY ORIENTING AND FEEDING MECHANISM Aug. 21, 1956 FOR A TURRET TYPE PITTEIR Original Filed Feb. 27, 1951 13 Sheets-Sheet 12 Snwentor WALTER IV. KELLY 4 attorney Aug. 21, 1956 w. w. KELLY 2,759,509

CHERRY ORIENTING AND FEEDING MECHANISM FOR A TURRET TYPE PITTER Original Filed Feb. 27, 1951 15 Sheets-Sheet l5 JrwentOt WALTER W. KELLY (lttorneg United States Patent CHERRY ORIENTING AND FEEDING MECHA- NISM FOR A TURRET TYPE PITTER Walter W. Kelly, Portland, 0reg., assignor to Food Machinery and Chemical Corporation, San Jose, Calif., a corporation of Delaware Original application February 27, 1951, Serial No. 212,947, now Patent No. 2,710,636, dated June 14', 1955. Divided and this application May 20, 1953, Serial No. 356,154

11 Claims. (Cl. 146-48) The present invention relates to fruit processing mechanism and pertains more particularly to a mechanism for feeding stem bearing fruit in oriented position to a fruit preparation machine.

This application is a division of my copending application, Serial No. 212,947, filed February 27, 1951 for Fruit Handling Machine, now Patent No. 2,710,636, issued June 14, 1955.

One object of the present invention is to provide a novel and improved fruit feeding and orienting mechanism. I

It is also an object to provide a mechanism capable of rapidly feeding and orienting large quantities of stem bearing fruit.

Another object is to provide a fruit feeding and orienting mechanism capable of accurately and rapidly depositing stern bearing fruit in properly oriented position within rapidly moving pitting and de-stemming units of a fruit preparation machine.

It is still another object to provide a fruit feeding and orienting mechanism capable of automatically feeding stem bearing fruit from a promiscuous mass thereof into fruit pitting and de-stemming units carried by a high speed rotary turret of a fruit preparation machine.

An additional object is to feed a plurality of unstemmed cherries or the like into the pitting cups of a pitting and de-stemming unit carried by a turret rotating continuously at high speed from a feeding and orienting device moving congruently with the pitting and de-stemming unit and then to enclose the cherries or the like in the pitting cups before they are moved sufficiently beyond the feeding zone to be thrown out of their respective pitting cups by centrifugal force, or in any other manner displaced from an oriented position within their respective pitting cups.

A further object is to provide a fruit feeding and orienting device for a high speed rotary type of fruit pitting turret, which device embodies means mounted to move alternately congruently with and counter to each fruit pitting unit of said turret during the fruit feeding period of said unit.

A still further object is to successively feed with their stems trailing unstemmed cherries or the like into the pitting cups of a pitting and de-stemming unit carried by a continuously rotating high speed turret from a feeding and orienting device cooperatively associated with said turret.

Furthermore, it is an object to provide a mechanism for feeding unstemmed cherries or the like into the pitting cups of a pitting and de-stemming unit carried by a continuously rotating high speed turret, within which mechanism the free fall of said cherries or the like is momentarily intercepted for timing the feeding thereof and for also inverting any cherries or the like falling stems down, so that upon release they will continue their descent into said pitting cups with their stems up.

These and other objects and advantages of the invenice tion will be apparent from the following description and the accompanying drawings wherein:

Fig. 1 is a front perspective View of a machine embodying the present invention.

Fig. 2 is an enlarged fragmentary front perspective view of the machine showing the opposite side thereof from Fig. 1, portions being broken away.

Fig. 3 is a vertical section taken along line 3-3 of Fig. 4, portions thereof being broken away.

Fig. 4 is a vertical sect-ion taken along line 4-4 of Fig. 3.

Fig. 5 is an enlarged fragmentary section taken along line 5-5 of Fig. 3.

Fig. 6 is a rear elevation of the machine shown in Figs. 1 to 5, inclusive, the drive motor and speed reducer being removed and the main drive shaft being shown in section.

Fig. 7 is a rear perspective View of the machine as it appears assembled with an elevator for elevating fruit into the feed hopper.

Fig. 8 is an enlarged fragmentary exploded perspective showing parts of the fruit retaining and pitting jaw assembly.

Fig. 9 is a vertical transverse section through the pitting turret, each of the six pitting stations thereof being sectioned along different planes and portions thereof being broken away to show the operative features of the same.

Fig. 10 is a fragmentary section taken along line 1010 of Fig. 11, a portion of the pitting cam being broken away.

Fig. 11 is a fragmentary section taken along line 1111 of Fig. 9.

Fig. 12 is an elevation showing the grooved track side of the jaw actuating ring cam.

Fig. 13 is an elevation showing the closed side of the pitting prong actuating ring cam.

Fig. 14 is an enlarged fragmentary front perspective view of a pitting station, parts thereof being broken away.

Fig. 15 is a similarly enlarged fragmentary rear perspective view of the pitting station shown in Fig. 14, the pitting turret disc, the ring cams, and the pitting cup assembly being omitted, and an intermediate portion of one of the jaw assemblies being broken away.

Fig. 16 is a top plan View of the pitting station shown in Fig. 14, the upper portions of the front and rear ring cams being broken away to show the cam follower rollers riding in the grooved ring cam tracks, and an upper portion of the pitting prong actuating slide bar being broken away.

Fig. 17 is a diagrammatic perspective view showing one of the pitting stations at various stages of its operative cycle as it is carried around a generally circular path by the rotation of the pitting turret.

Fig. 18 is an enlarged fragmentary section through a pitting cup in inverted position with the rubber retaining strip removed.

Fig. 19 is a perspective view showing a modified form of apertured belt feed mechanism associated with the pitting mechanism illustrated in Figs. 1 to 17, inclusive.

Fig. 20 is an enlarged fragmentary perspective View showing the portion of the belt feed mechanism illustrated in Fig. 19 in the zone where the cherries are dropped from the belt openings, through tapered gaps in a support plate into the pitting cups, portions being broken away.

The present invention is particularly adapted for use in processing cherries which have been de-clustered, but having their stems attached. However, it will be obvious to those familiar with the art that the invention also can be used for pitting de-stemmed cherries and for pitting 35 and/ or stemming other fruit, such as, for example, olives. As used herein and in the appended claims, therefore, the term cherries is intended to include such other fruit.

The machine of the present invention illustrated in Figs. 1 to 18, inclusive, comprises a pitting turret A (Figs. 1, 2, 9 and 11) mounted to rotate continuously and at relatively high speed on a frame B, and having fruit pitting units C (Figs. 1, 2, 5, 9, l4 and 16) disposed symmetrically about the periphery thereof. Cherries are fed in successive predetermined batches into the pitting units C by a rotary feeding device D which is generally similar to that disclosed in Patent No. 2,428,370 to Walter W. Kelly issued October 7, 1947.

The fruit is de-stemmed and pitted as each pitting unit C is carried around a circular path by the rotating pitting turret A in a manner to be described later herein, the stems being discharged into a suitable chute or container, not shown, and the cherries and removed pits being discharged into a rotary screen E wherein the pits are separated from the processed cherries. An elevator F (Fig. 7) may be employed to elevate the fruit from a receiving hopper G into an auxiliary feed hopper H of the rotary feeding device D.

In Figs. 19 and 20 a modified form of feeding device is illustrated comprising an apertured feed belt I arranged to pass upwardly along a sloping trough which forms the bottom of a feed hopper K containing a mass of cherries, individual ones of which drop into the apertures in the belt and are supported therein by means underlying the belt until they arrive over the center of the pitting turret A. Here termination of the underlying support allows the cherries to drop through the belt into registering cups of a pitting unit C. This belt feed arrangement is generally similar to that disclosed in Patent No. 1,440,744 to Phillippe issued January 2, 1923, but has certain distinguishing features which will be brought out later herein.

Elevator and feed mechanism Referring first to the embodiment of the invention illustrated in Figs. 1 to 18, inclusive, the elevator F (Fig. 7) has its hopper G mounted on a base frame 2%) having the tail roller 21 for an elevator belt 22 journaled therein. The elevator belt 22 slopes angularly upwardly along a side of the hopper G and has a plurality of transversely disposed flight strips 23 thereon. The upper end of the elevator belt 22 passes around a head roller 24 which is driven by a V-belt 25 from a motor 27 having a speed reducer 28 of a well known type connected thereto. An adjustable idler pulley 29 is provided to allow adjustment of the tension of the elevator drive belt 25.

The elevator F is mounted so that the cherries carried up by the flight strips 23 are discharged over the head roller 24 into the auxiliary feed hopper H which is mounted on a channel bracket .30 (Figs. 1, 2 and 4) and an angle bracket 31 (Fig. 4) secured to extend forwardly from a vertical frame plate 32. Other channel brackets 33 and 34 (Figs. 1, 2 and 4) also are secured to the vertical frame plate 32 to extend forwardly therefrom to support other portions of the stemming and pitting mechanism to be described later herein.

The upright frame plate 32 comprises a principal frame element of the stemming and pitting mechanism and is reinforced marginally by an angle metal frame 35 (Figs. 3 and 6). A transversely extending angle bracing member 38 also is secured to the frame plate 32 substantially mid-Way of its height. The frame plate 32 thus reinforced is mounted between a pair of horizontal channel members 39 and 4%), the forward ends of which are connected in laterally spaced relation by a tie bar 41 (Figs. 1, 2 and 4). Angle braces 42 secured to extend from the sides of the reinforced frame plate 32 to the horizontal channels 39 and 40 rigidly support the frame plate 32 in upright position. A wire mesh guard screen 37 (Fig. 7) is mounted over the driving mechanism on the rear side of the upright frame plate 32.

Continuing now with a brief description of the feeding device D, a forward wall 43 (Figs. 1, 2, 3, and 4) of the auxiliary feed hopper H is secured to the front ends of the support brackets 3i; and 31, and a curved hopper bottom plate 44 is secured to the rear side of the forward hopper wall 43. The hopper bottom plate 44 is curved to conform to the generally circular path of a plurality of pocketed feed members 45 mounted on a feed reel disc 47 which forms a major portion of the rear wall of the feed hopper H. The hopper bottom plate 44 also has an angularly sloping side portion 48 (Fig. 5) adapted to receive the cherries discharged over the head roller 24 of the elevator F, and a gusset plate 49 extends from the sloping side portion 48 to the reel disc 47.

The feed reel disc 47 has a hub portion 50 (Fig. 3) thereof journaled on a stationary shaft portion 51 of a bracket 52 bolted to the upright frame plate 32. A box frame filler member 53 (Fig. 5) of sheet metal is secured to the rear face of the forward hopper wall 43 and extends rearwardly a sufficient distance to just clear the reel disc 47. The box filler 53 partially supports the weight of the cherries in the feed hopper H and thus avoids having the pocketed feed members 45 plough downwardly through a mass of cherries in the feed hopper in a manner which might bruise the fruit.

A plurality of short, tubular connector bearings 54 (Fig. 3) are inserted in holes disposed symmetrically around the marginal area of the reel disc 47 and are welded therein. These tubular members 54 extend rearwardly from the reel disc 47 and their rear ends are inserted and welded in correspondingly arranged holes in a feed reel sprocket 55 welded co-axially on the reel hub 50. Each pocketed feed member 45 is mounted eccentrically on a stub shaft portion 58 (Figs. 3 and 5) journaled in one of the tubular bearing members 54, the eccentrically mounted feed members 45 extending forwardly to a point just clear of the front hopper wall 43.

Each pocketed feed member 45 has a plurality of pocket recesses 59 therein adapted to pick up and transport across the feed hopper a required number of individual cherries from the mass thereof in the feed hopper H at each passage of a feed member 45 therethrough. The number of cherry transporting recesses 59 in each feed member 45 corresponds to the number of cherries it is required that each feed member deliver during each cycle of its operation. In the illustrated form of the invention, this number is two, but for a production type machine eight would be a suitable number. The changes necessary to provide a machine for handling such additional numbers will be apparent to one familiar with the design of fruit processing machinery.

A radially extending flange 60 (Fig. 5) is provided around the forward end of each stub shaft 58 adjacent the feed reel disc 47, and a pin 61, secured in a hole in the reel disc 47, rides in a cut-away marginal portion 62 of the flange 60 to limit rotative movement of the feed member 45. A weighted feed member tilting arm 63 (Figs. 3 and 4) is secured to the rear end of each stub shaft 58 rearwardly of the feed reel sprocket 55, and is provided with two cam follower rollers 64 and 65 journaled thereon. T he rollers 64 and 65 are adapted to ride on a cam track 67 formed peripherally of a cam plate 68, the hub of which is secured to the stationary feed reel support shaft 51 by a set screw 69.

The cam track 67 acts on the rollers 64 and 65 rotatively to position the successive feed members 45 in proper upright position during the portion of their cycle wherein they pick up their cherries as they emerge from the space between the feed hopper bottom plate 44 (Fig. 5) and the box filler plate 53 and transport them across the upper portion of the feed hopper I- Several bumps 70 (Fig. 4) are provided on the cam track 67 to joggle the feed members 45 as they clear the mass of cherries in the feed hopper so as to shake off any cherries other than those seated in the recesses 59.

A pair of dumping projecti ns 71 and 72 are provided on the camtrack 67 to invert the pocketed feed members 45 (Fig. 5) causing them to dump the cherries carried thereby into a feed chute 76. An inturned end portion 73 (Figs. Sand 4) of a strap cam member 74 has a hub portion 75 thereof secured by aset screw 78- to the stationary feed reel support shaft 51. The inturned end portion 73 of this strap cam 74 is positioned to engage the rollers 64and 65 on the weighted arm 63 as they pass beyond the dumping cam projections Hand 72 to turn the feed member 45 in a reverse direction from the invertingtmovementcaused by the cam projections 71 and 72t0 allow the feed members 45 to clear the upper end of the feed chute 76.

The feed mechanism described up to this point is generally similar to that disclosed in Kelly Patent No. 2,428,370 referred to previously herein. The feed chute 76, however, is a composite structure, and has novel features which tend to insure accurate depositing of a cherry in the pitting cups of successive pitting units C carried by the continuously rotating turret A.

The feed chute 76 comprises a stationary upper chute portion 79 (Figs. 4 and 5) formed integrally with an upright hopper wall portion 8 securedby bolts 81'to extend downwardly from the angle frame bracket 31.: The chute portion 79 has a partition 79a centrally thereof, which extends upwardly in the form of a rib along the inner face of the wall portion 80'. A swinging. intermediate chute portion 82, having a vertical central partition 82:: therein (Fig. 3), has similar front and rear wall portions 83 the upper and lower edges of which are curved concentrically with the axis of swing of the chute portion 82. The curved upper edge of the intermediate chute portion 82 is adapted to swing closely adjacent a lower end portion of'the stationary upper chute portion 79; while the curved lower edge of the intermediate chute portion 82 is adapted to swing closely adjacent the open upper end 'of a pivotally mounted lower chute portion 88. The lower chute portion 88 has a plurality of passages 87 extending lengthwise therethrough and adapted to receive individual cherries released by the intermediate chute portion for discharge into individual-pitting'cupsin the pitting turret A in a manner generally similar to that of Kelly Patent No. 2,428,370 mentioned previously herein.

The swinging intermediate chute portion 82 is secured by. screws 89 (Fig. to the lower end of a cam actuated, spring biased lever arm 90, which is pivoted on the forwardl'y extending portion of a pivot pin 91 mounted in a boss 92 formed on the hopper wall portion 80. The arm 90 is adapted to swing the intermediate chute portion 82 mounted thereon from an open position (Fig. 4) wherein the intermediate chute portion 82 is in alignment with the fixed upper chute portion 79, to a closed position (Fig; 5) wherein the left handwall 84 of the intermediate chute portion 82 is positioned closely adjacent a downwardly extending portion 85 of the hopper wall portion 80. A coil spring 93 (Figs. 1, 2 and 5) is connected in tension between an upper portion of the intermediate chute support arm 90 and a front cam shaft bearing bracket 94 and normally urges the arm 90 in clockwise direction toward its open position as shown in Figs. 1, 2 and 4.

For actuating the intermediate and lower chute portions in timed sequence with each other, and with other mechanisms to be described later herein, a cam shaft 95 (Figs. 1, 2, 4 and 6) is journaled in the front cam shaft bearing bracket 94 and in a rear bearing bracket 98 (Fig. 4) secured to the upright frame plate 32. A bracing. strap 99 (Figs. 1 and 2) is connected from the front cam shaft bearing bracket 94 to the feed hopper H, and a diagonal bracing bar 100 (Figs. 1, 2 and 4) extends from the forward end of the ,channel bracket 33 to a front pitting turret bearing 101 to which it is welded A pair of' diagonal bracing bars 102and"103have"their upper lower ends being secured, respectively, to the front endsof the base channels 39 and 40.

A cam follower roller 107'isjournaled on a side of the upper end portion of the intermediate chutesupport arm and rides on aperipheral cam track 108-" of a chute actuating cam 109 mounted on the cam shaft 95, and is adapted, during a predetermined portion of its cycle, to swing the intermediate chute support arm 90-against the biasing force of the coil spring 93 in a counter-clockwise direction to its closed position (Fig. 5). The chute actuating cam 109 is mounted for rotative adjustment on a hub member 111 (Figs; 1 and 2) secured to the camshaft by cap screws 112 inserted through arcuate slots 113 in the hub member 111 and screwed into threaded holes inthe cam 109.

The feed mechanism D is driven from the chute actuating cam shaft 95 by means of a feed reel drive sprocket 1211 (Fig. 4) having a splithub portion 121 which is clamped in rotatively adjusted position on the cam shaft 95. A chain 122 is passed around this sprocket and also around the large feed reel sprocket 55. A usual slack take-up idler sprocket 123 (Fig. 4) is journaled ona' bolt 124-secured in adjusted position in a slot 125 in abracket 128 mounted on the channel frame bracket 33.

The peripheral cam track 108 on the chute actuating cam 109 is formed and adjusted to elevate the roller 107 to swing the intermediate chute portion 82 to its retracted closed position shown in Fig. 5 as each pocketed feed member 45 dumps its charge of cherries'into the stationary upper chute portion 79, and thento free'the' roller 107 to permit the coil spring 93 to swing theintermediate chute portion 82 to its open or cherry discharging position (Figs. 1, 2 and 4) at the stage in the rotative cycle of the pitting turret A where it is desired to discharge the individual cherries through the" passages 87 in the pivotally mounted lowermost chute' portion 88. The lowermost chute portion 88 l1asa rearwardly extending mounting stud 88a formedintegrally therewith, the stud 38a being pivotally mounted in a tubular bearing member 1229 (Figs. 3, 4 and 5) supported from the upright frame plate 32 in axially horizontal position by three legs 130, 131 and 132 The rear ends of the legs are welded to a plate 133'secured to the upright frame plate 32, while their forward ends are welded at 134 to the tubular bearing member 129. The mounting stud 83a is slightly-longer than the bear ing member 129 in which it is pivotally mounted, and is retained against forward axial displacement therein (Fig.

3) by a-retaining washer 137 and a screw 138 screwed into a threaded axial hole in the end of the stud 88a.

The lower or discharge end of the lowermost chute= portion 88 is connected (Figs. 1, 4 and 5) by an actuating link 139 to the lower end of a lower chute: actuating leverarm 14d, the upper end of which ispivotally mounted on the opposite end of the pivot pin 91'from' the intermediate chute actuating lever arm 90. A cam: follower roller 141 (Fig. 4) is journaled on a side of the lever arm 141) substantially midway of its length, and rides in a grooved cam track 142 provided therefor in a side of the chute actuating cam 109.

The grooved cam track 142 is formed'to swing the lower or discharge end of the lowermost chute portion 88 congruently with the pitting cups of each successive pitting unit C for a predetermined distance as it is car-" ried past beneath the chuteby the uniform rotation-of the pitting turretA, and then to swing the lower chute portion'88 in theoppo'site direction back to its starting position during the interval between'successive pitting units. The peripheral 'cam track 108 is formed relatively to'the grooved cam track 142so as to allow the coil spring 93 to swing. the intermediate chute portion 82 toits open position (Figs. 1, 2 and 4-) as the'discharge endof the lower chute portion 88 moves congruently. with a pitting unit C, and to raise the roller 107 to swing,

Fitting turret and cams The pitting turret A is mounted on a shaft 143 to rotate therewith. The shaft 143 is journaled in bushings 144 and 145 (Fig. 11) inserted in counterbored portions in opposite ends of a bearing bracket 147 secured by bolts 148 to the upright frame plate 32. The forward end of the shaft 143 is journaled the frame mounted bearing 181 (Figs. 1, 2 and 3) mentioned previously herein.

The pitting turret shaft bearing bracket 147 (Fig. 11)

comprises a tubular portion 149 Welded in position in a hole in a mounting plate portion 158. The tubular portion 149 extends rearwardly beyond the mounting plate portion 158 a distance slightly greater than the thickness of the upright frame plate 32, and is inserted in a hole provided therefor in the upright frame piate. Thus this rearwardly extending portion serves as a loeating flange for the bearing bracket 147 and also as a thrust bearing for the hub of a special pitting turret drive sprocket 151 mounted on the rear end of the pitting turret shaft. The sprocket 151 will be described later herein in connection with the driving mechanism. A collar 152 (Figs. 3 and 11) is mounted on the pitting turret shaft 143 between the forward end of the pitting turret bearing bracket 147 and a rear disc 153 of the pitting turret A. The hub 154 of the rear pitting turret disc 153 is secured to the pitting turret mounting shaft 143 by set screws 155 and a key 157. A front jaw support spider 158 of the pitting turret A is of smaller diameter than the rear disc 153, and its hub is secured to the turret support shaft 143 by a set screw 159. The peripheral portion of the rear turret disc 153 is mounted (Figs. 3, l1 and 14) between two fixed cam rings 160 and 161 which are of slightly larger external diameter than the rear pitting turret disc 153. The cam rings 160 and 161 are mounted for relative rotative adjustment on a cylindrically curved cam ring support plate 162, which is secured, by cars 163 welded thereto, to the upright frame plate 32. The cam rings are secured to the curved cam ring support plate 162 by cap screws 164 which are inserted in slotted openings 165 in the support plate 162 and are screwed into threaded openings provided therefor in the cam rings. Loosening the cap screws 164- permits the cam rings 168 and 161 to be move rotatively to adjusted positions after which the cap screws 164 may again be tightened to secure the cam rings in adjusted position. A removable top closure plate 166 (Fig. 2) is adapted to fit over the upper peripheral portions of the cam rings 160 and 161 and is attached to the ends of the curved support plate 162 by thumb screws 167.

Six similar cherry pitting units C are provided in symmetrically spaced relation between the jaw supporting spider 158 and the rear turret disc 153. Each pitting unit C comprises a pitting cup assembly 168 (Figs. 3, 5, 9, 11 and 14) afiixed to the rear pitting turret disc 153, a radially movable pitting prong assembly 169 (also Fig. mounted for radial reciprocating movement on the rear pitting turret disc 1.53, and a pair of cherry retaining and stem gripping jaw assemblies 178 and 171 pivotally mounted between the jaw support spider 158 and rear pitting turret dis-c 153.

Each pitting cup assembly 168 (Fig. 14) comprises a cup support bracket 172 having a cup supporting bar portion 173 welded to extend at right angles from a mounting plate portion 174. The mounting plate portion 174 of each pitting cup assembly is secured by a machine screw 175 and cap screws 177 to the front face of the rear turret disc 153 to bridge a radially directed slide bar mounting groove 178 in the rear turret disc 153 and thus to retain a pitting prong mounting slide bar 179, associated with each pitting cup assembly, for

radial sliding movement in the groove. The bar portion 173 of each pitting cup support bracket 172 has a pitting cup block 188 (Figs. 9, 11, 14 and 18) mounted thereon. Each pitting cup block 180 has a plurality of pitting cup cavities 181 therein, the number thereof corresponding to the number of recesses 59 in the feed members 45, of the rotary feeding device D. Each pitting cup cavity 181 has a conically tapered bottom 182 and a cylindrical side wall 183. A hole 184 is provided through the cup block 180 centrally of each pitting cup cavity 181, the holes also extending through tubular extensions 185 provided on the inner side of the cup block 180. The tubular extensions 185 are inserted with a loose sliding fit in correspondingly located holes in the cup support bracket 172. Each tubular extension 185 has a peripheral groove 186 therein to receive the end of a set screw 188 which is inserted in a threaded hole in the cup support bracket to a sufficient depth to enter the groove 186, but to remain clear of contact with the bottom of the groove. Thus the set screws 188 retain the cup blocks 180 on their brackets 172 but permit limited axial sliding movement of the tubular extensions 185 in their respective mounting holes.

A retaining strip 189 of resilient material such as sheet rubber is adapted to be wrapped around each pitting cup block 188, and is retained thereon by a pair of wires 190 wound tightly around the rubber strip 189 to secure it to the block.. The strip 189 extends radially outwardly slightly beyond the block 18!) around which it is wrapped, to provide a resilient retaining flange for preventing the cherries from falling off the cup block 180 as they are dropped into the cup cavities 181 through the feed chute 76. The retaining strip 189 does not, however, extend beyond the block 180 a sufficient distance to interfere with cherries in the pitting cups when the jaws are closed as shown in Fig. 17 to effect folding of the outwardly projecting flange portion of the rubber retaining strip 189 inwardly over the pitting block.

This engagement of the retaining strip 189 by the jaws 178 and 171 prevents downward gravitational movement of the pitting cup block 188 when it is swung to inverted position beneath the pitting turret A. However, in pitting some types of cherries, the cherries may have a tendency to rebound in their respective cup cavities when their stems are extracted, and thus cause the cherries to turn in their pitting cups to improper positions for the subsequent pitting operation. In such cases the resilient retaining strips 189 may be omitted so that the pitting cup blocks 188 will be free to move relatively to the support bracket 172 within the limits of axial slidable movement of the tubular extensions 185 as determined by the width of the annular peripheral grooves 186 therein. Thus, when the pitting units C are in their uppermost upright position on the pitting turret A to receive a charge of cherries therein as shown in Fig. 14, the weight of the pitting blocks 188 will cause them to gravitate onto the bracket bar 173, while when the pitting units are in their lowermost, inverted, de-stemming, pitting and discharging positions, as shown in Fig. 18, the pitting cup blocks 180 will gravitate away from the bracket bar 173 to rest on the cherries in the pitting cups and thereby prevent them from turning when their stems are extracted.

A pitting prong mounting block 191 (Figs. 3, 5, 9, 11, 14 and 15) is secured by screws 192 to the lower end of each pitting prong slide bar 179, and a cam block 193 is interposed between the pitting prong support block 191 and the slide bar 179. Side portions 194 (Figs. 5, 9, 14 and 15) of the cam block 193 extend laterally beyond the pitting prong support block 191 and are beveled inwardly at their outer ends to provide sloping shoulders 195 which are forced, on an outward movement of the pitting prong assembly 169, to pass between a pair, of jaw-closing rollers to be described later here-v in: A pair of pitting prongs 197 have threaded shank portions 198 (Fig. 11) which are screwed to adjusted positions in threaded holes provided therefor in each pitting prong support block 191 and are retained therein by lock nuts 199. The upper portion of each pitting prong 197 has a usual plurality of radially extending blade portions 200, the upper ends of which slant in' Wardly toward their common axis and are sharpened. The upper end of each pitting prong rides in the hole 184 of its associated pitting cup cavity 181.

A toothed rack 206 is provided in a side of each pitting prong slide bar 179 near its outer end, the rack teeth being in mesh with the teeth of a segmentally toothed pitting prong actuating member 202 pivotally mounted on a headed stud 203 (Figs. 9, 14 and 16) inserted' in a hole in the rear pitting turret disc 153 and secured therein by a set screw 204. The segmentally toothed actuating member 202 is mounted for swinging movement in a recess 205 (Fig. 14) in the forward side of the rear pitting turret disc 153, and a cam actuated lever arm 208 (Figs. 9, 10, 14 and 16) is also pivotally mounted on the headed stud 203 forwardly of the segmentally toothed member 202.

A cam follower roller 209, adapted toride in the grooved cam track 210 of the forward ring cam 160, is journaled on a stud 211, which (Figs. 10, 14 and 16) has the reduced, threaded, shank portion thereof inserted through a hole in the cam actuated lever arm 208 and alsothrough an arcuate slot 212 in the segmentally toothed member 202 to extend rearwardly thereof; For angularly adjusting the cam actuated lever arm 208-relatively to the segmentally toothed member 202, a pair-of set screws 213 and 214 are screwed into holes in'the inner and outer edges, respectively, of the segmentally toothed member 202, these holes opening'into opposite ends of the arcuate slot 212 and gripping the shank of the cam roller support stud 211 in adjusted position between them. The cam roller support stud 211 is secured in such adjusted position in the slot 212 by a nut 215 screwed onto the rearwardly extending threaded rear end of the stud 211 and drawn down tight to grip the cam actuated lever arm 208 and the segmentally toothed pitting prong actuating member 202 between the nut 215 and the shouldered offset between the duced shank portion. The rear side of the segmentally toothed member 202 is relieved at 202a (Figs. 10, 14 and 16) to admit a wrench, not shown, for adjusting the nut 215. A corner portion 217 (Fig. 14) of the pitting cup bracket plate 174 is cut away to clear the cam roller 209 and its supporting arm 208 upon pivotalmovement of the latter about the headed stud 203.

A major portion of the grooved pitting prong actuating cam track 210 (Fig. 13) in the rear face of the forward cam ring 160 is circular, and is spaced from the axis of thepitting turret shaft 143 by a radial distance sufiicient to maintain the pitting prongs 197 intheir retracted position as shown in Fig. 14 duringthe entire rotative cycle of the pitting turret A except during the pitting stroke. A rise 218 is provided in the pitting camtrack 210, at the stage of its rotative cycle where the fruit is to be pitted to move the cam follower roller 209' outwardly and thereby swing the cam actuated lever arm 208 and the segmentally toothed member 202 outwardly.

The meshed inter-engagement of the segmentally toothed 6 member 202 with the rack 206 on the slide bar 179 thereby moves the slide bar and the pitting prong assembly 169 carried thereby radially outwardly.

The similar but opposite jaws 170 and 171 of eachpair thereof are pivotally mounted with their axes of pivotal movement on opposite sides of the radial pitting prong slide bar groove 178 in the front face of the rear pitting turret disc 153, the forward ends of the jaws being pivotally'rnounted in holes in the jaw support spider 153 10 171 com rises a body-portion 220' (Figs. 3, s; 9', 1'6; 11; 14, 15 and 16) with a pair oflaterally extending arms 221 and 222' formed integrally therewith and connected together at their free ends by a bar portion'223. A'facing block 224 of resilient deformable material, such as rubber, having a hard base portion 225 integrally secured thereto, is mounted on the inner face of each jaw bar 223 by screws 228. A pair of quarter-spherical recesses 229 are provided in the inner face of each resilient facing block 224, to overlie the pitting cup cavities 181 inthe pitting cup cavities and loosely to enclose the cherries therein. The resiliencyof the facing blocks is such'asto permit a pit to beforced outwardly therebe'tween upon an actuation'of the pitting prongs When thejaws are in their closed contacting relation.

A bifurcated arm 230 (Figs. 8, 9, 10, 11, 14, 15 and 16) is formed to extend laterally from adjacent the rear end of each jaw bodyportion 220; and'a' cam actuated jaw closing lever arm 231 is mounted for relative pivotal adjustment adjacent each bifurcated arm 230' for impart ing a final squeeze to the jaws 170 and 171 upon actuation of the pitting prong assembly 169 associated therewith. This squeezing action is accomplished by a cam actuated roller'232 which is mounted on the radially inward end of each jaw squeezing lever arm 231 and is adapted, upon eachactuationof the pitting prong assembly 169 associated' therewith, to be engaged by a sloping shoulder 195 of the cam block 193 interposed between the'pitting prong slide bar 179'and the pitting prong mounting block 191.

The end of each lever arm 231 opposite that havingthe roller 232 thereon is adjustably secured to the bifurcated end of the arm 230 on the. jaw body portion 220 by an eccentric adjusting member 233 having a nut portion 234. formed integrally therewith. A cap screw 235 is inserted through an eccentric hole" inthe jaw adjusting member 233 and is adapted to be drawn down to clamp the bifur cated arm 230 between the nut portion 234 of the eccen tric adjusting member 233 and the jaw squeezing lever arm 231. By loosening this cap screw 235, turning the eccentric adjusting member 233 to a desired position, and" again tightening the cap screw, the roller supporting jaw squeezing lever'arm 231 can be adjusted angularly relativelyto the jaw body member 220 and thus adjust the H amount of squeeze to be imparted to the jaws by the cam roller supporting portion of the stud 211 and its reshoulders 195 upon actuation of the pitting prongs.

The rear-end of the jaw body portion 220 (Figs. 8 and 11) has'a hole drilled axially therein and counterbored, the inner portion of the hole being threaded to receive a jaw assembly'bolt 238, which also is inserted through the tubularbody portion 239' of a jaw actuating member: 240; The forwardend of the tubular portion 239- of the jaw a'ctuatingmember 240 (Fig. 8) has flattened side faces 241 thereon "which fit into the correspondingly notchedout rear'end 242 of the jaw'body member 220. A spacdisplacement.

For'operating the jaw actuating member 240, anarnf 245 (Figs. 9, ll, 15 and 16) is formed to extend at right angles from'the'tubular portion of the jaw actuating member240' adjacent the rear end thereof. A jaw actuating .bell crank lever 249 is mounted for pivotal adjustment on the tubular rear portion of the jaw actuating member 240 rearwardly of the'arm 245 thereon, and is retained against rearward axial displacement by the head of the jaw assembly belt 238 (Fig. 11) and a washer 250; Onearm 251- of the-bell crank lever 249 is bifurcated, and is adjustably connected to the arm 245 on the jaw actuating"- member 240by an eccentric adjusting member 248'similar to the 'eccentri'c adjustingmember 233 for adjusting thejaw squeezingilever arm 231, and a cap screw247, which (Figs. 1, 2, 3,11, 14 and 16). Each of the'jaws-170ai1d"75 is inserted through the eccentric hole in the adjusting 1 1 member 248 and is screwed into a threaded hole near the free end of the arm 245.

The other arm 252 of each bell crank lever 249 is connected by a link 253 to a pin 254 (Figs. 9, l1 and inserted in hole in a rearwardly extending boss 255 on a jaw actuating slide bar 257 and silver soldered therein. The links 253 are retained on the pin 254 by a cotter key 258. Each jaw actuating slide bar 257 is mounted for slidable reciprocating movement in a radially extending groove 259 provided therefor in the rear side of the rear pitting turret disc 153 opposite the pitting prong actuating slide bar groove 178 therein (Figs. 3, 9, l1 and 16). The jaw actuating slide bars 257 are retained in their respective grooves by metal bridging strips 260 (Figs. 3, 4, 9, 11 and 16) and a bridging ring 261 secured by cap screws to the rear face of the rear pitting turret disc 153.

A cam follower roller 262 is rotatably mounted on a stud 263 screwed into a hole in a boss 264 (Figs. 9, 11 and 15) projecting from the rear side of the jaw actuating slide bar 257 near its outer end, and is secured therein by a set screw 265. This cam follower roller 262 rides in a forwardly facing grooved cam track 268 in the jaw actuating rear cam ring 161. The cam follower roller 262 actuates the slide bar 257 and the links 253 to control the principal jaw opening and closing movements, while the cam follower rollers 232 on the lower ends of the lever arm 231, when separated by the entrance of the sloping shoulders 195 of the cam block 193 therebetween, cause a final squeezing together of the jaws 170 and 171 during actuation of the pitting prongs.

Stem aligning means As each batch of cherries is dumped (Fig. 5) by the inversion of the recessed feed members into the respective passages formed in the respective parts 79, 82 and 88 of the feed chute, the stems of the cherries first tend to strike the upper edges of the upper chute portion 79 or the partition 79a to right the cherry with its stem end up. If, however, the cherry falls into the upper chute portion 79a in stem-end-down position as shOWn in Fig. 5,

the side plate 84 of the intermediate chute portion 82 remains spaced from the lower end of the hopper wall portion 80 in a closed position of the intermediate chute portion a sufficient distance to let the stem project through the gap thus provided. Such projecting stems, upon release of the cherry by the swinging of the intermediate chute portion to its open position, will strike the upper edge of the lower chute portion 88 and thus will be righted before entering the passages 87 in the lower chute member 88. Since any cherries that are righted in the upper chute portion 79 will continue to drop stem-end-up, and since those which are in stem-end-down position tend to be righted, the cherries dropped through the lower chute passages 87 by the swinging of the intermediate chute portion 82 to open or cherry releasing position as shown in Figs. 1, 2 and 3 tend to land stem-end-up in the cup cavities 181 with their stems projecting radially of the turret A outwardly beyond the resilient jaw facing blocks 224.

In order to center the outwardly projecting stems and at the same time to bring the cherries to which they are attached into proper alignment for performance of the stemming and pitting operations to be described later herein, the jaws 171) and 171 are first swung from fully open to almost closed condition as they are carried by the rotation of the turret A beyond the lower end of the pivotally mounted lower chute portion 88. This partial jaw closing action is accomplished by the jaw actuating cam follower roller 262 moving from the higher 266 (Fig. 12) of the grooved cam track 268 in the rear cam ring 161 into the lower portion 272 thereof. This partial closing of the jaws swings stems 115 of the cherries in the pitting cups radially outwardly so that the portions of the stems between the rubber jaw facing block 224 are disposed substantially on a radial plane of the pitting turret A.

From this point in their travel, and until the projecting stems of the cherries are about to enter between the stemming rolls, to be described later herein, the jaws 170 and 171 remain separated sufficiently to permit the projecting stems to be swung lengthwise of the space between the jaws toward a radially centered position therein. The cherries 114 are held loosely within the enclosures formed by the pitting cup cavities 181 and the complementary recesses 229 in the rubber jaw facing blocks 224 during this portion of their travel to permit the cherries to be turned by means engaging their projecting stems to align the stem-blossom axes of the cherries radially of the pitting cups.

The means for aligning the projecting stems, and thereby the cherries to which they are attached, comprises a plurality of resilient rubber fingers 273 (Figs. 1, 2, 5 and 17) which are mounted, brush-like, on a sheet metal plate 74 secured to a plate 275 bolted to the underside of a spacing block 277, which in turn is secured to the underside of the channel frame bracket 3'11. The rubber fingers 273 are mounted adjacent the exterior side of a plurality of tapered, cylindrically curved comb members 278 mounted on the lower ends of a plurality of posts 279 which depend from the plate 275 secured to the underside of the spacing block 277.

The tapered comb members 278 are curved substantially co-axially of the pitting turret A and are mounted to lie slightly beyond the rotative sweep of the jaws and 171 upon rotation of the pitting turret. Wire extension members 281, curved to conform to the curvature of the comb members 278, extend from the narrow end of each of the comb members 278 to a point beyond the zone wherein the cherries are discharged into the pitting cups from the lowermost chute portion 38. In the event the stems of any two cherries should become entangled after they have dropped into the pitting cup cavities 181 on opposite sides of a wire 281, they would be separated from each other by the subsequent action of the tapered comb members 278 as the cherries are carried around their curved paths in the cups of the pitting turret A. The side edges of adjacent tapered comb members 278 converge in the direction of pitting reel rotation, and the rubber brush fingers 273 cooperate with the comb members to swing the stems of the cherries toward a radially centered position over their respective cherries, and at the same time turn the cherries to align their stem-blossom axes radially of the turret A.

A second set of tapered comb members 282 further assists in swinging the stems of the cherries in the pitting cups toward properly centered position. The comb members 282 of this second set are generally similar to those of the first set 278 and are mounted on the lower ends of a plurality of posts 283 secured to a bar 234 which in turn vis secured to the free end of a plate 255 bolted to the lower flange of the frame channel member 3'11.

A third, generally similar set of tapered stem centering comb members 288 is mounted on posts 289 secured to a plate 290 which in turn is secured by screws 221 to the top of a stemming roll gear box 292. A pluraiity of pins 293 also are mounted on the plate 29%) and extend diagonally toward the tapered comb members 253 in the direction of turret rotation to assist still further in bringing the projecting cherry stems into radially centered position prior to their entrance between the stemming rolls.

Stemming rolls A pair of stemming rolls 224 and 25 5 is provided for each circularly aligned row of pitting cup cavities 181 around the pitting turret A. The stemming rolls of each pair are adapted to receive between them the properly centered stems of the cherries in the ptting cups, and, by rotation of the rolls in opposite directions, to extract the stems from the cherries. Each stemming roll (Figs. 1, 2, 3 and 17) comprises a shaft portion 297 having a rubber covered stern engaging portion 298 thereon with 13 its entrance end tapered to guide the cherry stems between the rubber covered roll portions. One end of each stemming roll shaft portion 297 1;; journaled in the gear box 292 (Figs. 1, 2, 3 and 4) mounted on the frame channel bracket 34, while the other end of each stemming roll shaft is journaled in a bearing member 300 mounted on the free end of a bearing support bracket 301 (Figs. 2, 3 and 4) secured to a side of the gear box 292 to extend horizontally therefrom in the direction of pitting turret rotation.

A stemming roll drive shaft 302 (Fig. 2) is mounted with its forward end journaled in the gear box 292 and has conventional geared driving connection (not shown) with the stemming rolls to drive them oppositely in pairs. The stemming roll drive shaft 302 extends rearwardly from the gear box 292 through a hole provided therefor in the upright frame plate 32, and is journaled in a bearing 303 (Fig. 3) secured to the rear side of the upright frame plate 32 concentrically over the shaft hole therein. A collar 304 (Fig. 2) is secured to the stemming roll drive shaft 302 by a set screw 305 to prevent endwise displacement of the shaft.

The rotary screen E (Figs. 1 and 2) for separating the pits from the cherries discharged by the machine, has a spider 307 (Fig. 1) therein, the hub of which is secured to a shaft 303 journaled in a bearing bracket 309 (Fig. 4) I similar to the bearing bracket 147 in which is journaled the pitting turret support shaft 143.

Drive mechanism For driving the various rotating elements of the stemming and pitting machine, a grooved pulley 301 (Fig. 6) is mounted on the power take-off shaft of a conventional speed reducer 311 (Fig. 7) driven by an electric motor 312. A V-belt 313 passes around the grooved pulley-310 and also around one groove of a smaller double grooved pulley 314 secured to a stub shaft 315 journaled in a bearing bracket 317 mounted on the upright frame plate 32. The stub shaft 315 also has a spur pinion 318 (indicated in dotted lines in Fig. 6) keyed thereto, the pinion 318 being in mesh with a driven gear 319 keyed to the feed chute actuating cam shaft 95 upon which the chute actuating cam 109 and the small feed reel drive sprocket 120, mentioned previously herein, also are mounted.

The driven gear 319 on the chute actuating cam shaft 95 is in mesh with a gear 320 keyed to a stub shaft 321 journaled in a conventional bearing bracket, not shown, mounted on the upright frame plate 32. A sprocket 322 also is keyed to the stub shaft 321 to rotate with the gear 320. An endless chain 323 passes around the sprocket 322 and also around the large pitting turret drive sprocket 151 adjustably secured to the pitting turret drive shaft 143. A slack take-up idler sprocket 325 is mounted on a stud 327 adjustably mounted in a slot 328 in a bracket 329 mounted (Figs. 3 and 6) on the transverse frame angle member 38 to bear against the outer sideof the pitting turret drive chain 323.

Rotative adjustment of the pitting turret drive sprocket 151 relatively to the turret drive shaft 143 is necessary in order to permit synchronization of the pitting turret A with the rotary feeding device D and the chute actuating cam shaft 95, so as to insure that successive batches of cherries will be fed into the feed chute 76 at proper times to be trapped by intermediate chute portion 82 and will be released thereby as the lower chute portion 88 is swung to move congruently with successive sets of pitting cup cavities 181 of the pitting turret A.

The sprocket 151 is mounted for rotative adjustment on the shaft 143 by means of a special hub structure comprising a cylindrical hub block 331 secured to the shaft 143 by a key 332 (Fig. 11) and set screws 333. The sprocket 151 has a central hole therein which is fitted into an annular rabbeted groove 334 provided marginally around the rear end of the hub block 331. The annular groove 334 is slightly less in depth axially of the 14 block 331' than thethickness of the sprocket 151, and a clamp ring 335 and cap'screws 337 clamp the sprocketin rotatively adjusted positionin the groove. The cap screws 337 also pass through holes in a second and small er sprocket 338, mounted in concentric relation to the turret drive shaft 143, and heldin axially spaced relation. to the sprocket 151 by the clamp ring 335.- For rotatively moving the sprocket 151 on the hub block 331, a stud 339 (Figs. 3 and 11) has a reduced threaded shank portion 340 thereof inserted in a hole in the sprocket 151 and secured therein by a nut 341. The body of the stud 339 projects forwardly from the sprocket 151 and is mounted between a pair of lugs 342 formed integrally with the hub block 331 and spaced apart by a distance substantially greater than the width of the body of the stud 339. A pair of adjusting screws 343 are screwed from opposite directions through threaded holes in the lugs 342 so that upon loosening the cap screws 337 which clamp the sprocket 11 to the hub block 331, the sprocket can be rotatively adjusted by means of the screws 343.

The driving ratiobetween the chute actuating camv shaft and the pitting turret drive shaft 143 as determined by the gears 319 and 320 and the chain 323 is such as to move the pitting units C on the pitting turret A in synchronism with the pocketed feed members 45' on the feed reel disc 47. Since, in the illustrated embodiment of the invention, there are six of each, the pitting turret A is driven to rotate at the same speed as the feed reel.

For rotatively driving the rotary screen E, a'chain 347' (Fig. 6) passes around the smaller sprocket 338 on the rear end of the pitting turret support shaft 143 and also around a sprocket 348 secured to the rear end of the rotary screen support shaft 308. The speed of rotation of the rotary screen E is not critical, nor is that of the stemming roll drive shaft 302 which is driven by a V-belt 349 passing around a grooved pulley 350 on the stemming roll drive shaft 302 and also around the second portion of the double-grooved pulley 314 on stub shaft 315. The V-belt 349 also passes over a tension adjusting idler pulley 351 mounted on a bracket 352 (Figs. 3 and' 6) adjustably secured to the transverse frame bracing angle member 38.

Operation In the operation of the embodiment of the invention tached, but have been de-clustered. The cherries are carried up the elevator F on the flight strips 23 on the elevator belt 22 and dumped into the feed hopper H. The rate of feed by the elevator should be such as not to overfill the feed hopper.

The rotating feed reel disc 47 (Fig. 5) carries the pocketed feed members 45 beneath the box shield 53 and thence upwardly through the mass of cherries in the feed hopper H where a cherry is picked up by each of the pocket recesses 59 as the feed members 45 emerge from the mass of cherries in the feed hopper H. Each cam follower roller 64 (Fig. 4) on the weighted arm 63 of a feed member 45, in passing over the series of bumps '70. on the feed cam track 67, rocks its associated feed member 45 to shake offany extra or unseated cherries which may have been carried up by the feed members. As each feed member 45 arrives over the feed chute 76, the rollers 64 and 65 ride over the cam projections 71 and 72, inverting the feed member 45 and dumping each of the cherries carried therebyinto one of the passages formed 

1. IN A MUIT PROCESSING MECHANISM, A FEED CHUTE HAVING A MOVABLE DISCHARGE PORTION AT ITS LOWER END, MEANS FOR FEEDING A CHERRY INTO THE FEED CHUTE FOR GRAVITATIONAL MOVEMENT THERETHROUGH, A PITTING CUP MOUNTED IMMEDIATELY BELOW SAID DISCHARGE PORTION AND ARRANGED FOR MOVEMENT ALONG A PREDETERMINED PATH BENEATH THE FEED CHUTE, MEANS FOR MOVING SAID DISCHARGE PORTION OF THE FEED CHUTE FOR A PREDETERMINED DISTANCE IN REGISTRY WITH THE PITTING CUP PASSING ALONG SAID PATH, A MOVABLE GATE MOUNTED MOMENTARILY TO SUPPORT A CHERRY FED TO SAID FEED CHUTE, AND ACTUATING MEANS OPERATIVELY CONNECTED TO SAID GATE TO MOVE SAID GATE TO RELEASE THE SUPPORTED CHERRY AS THE DISCHARGE PORTION OF THE FEED CHUTE MOVES IN REGISTRY WITH THE PITTING CUP TO FREE THE CHERRY FOR GRAVITATIONAL MOVEMENT INTO THE PITTING CUP. 